Dr Gabrielle Walker examines ice, one of the strangest substances in the world. (R)
26/26 The nature and wildlife of Britain and Ireland. The Mighty Moorhen. (R)
5/6 Máire Bhreathnach and Jarlath Burns highlight important rural and environmental stories.
BBC Two Northern Ireland
1/3 Documentary following the construction of the Astute nuclear submarine. (R)
8/15 Uncovering research that has the power to make us all live longer and healthier lives.
BBC Two England, Scotland only
Documentary following the world's largest wolf pack in Yellowstone National Park. (R)
2/2 Ben Fogle and the team of scientists take a look at Australia's saltwater crocodile.
BBC Two Wales
7/15 Adam Rutherford meets a new creature created by American scientists - the spider-goat. (R)
Wednesday 29 February 2012